/*
 * Copyright (c) 2023 by Kang Wang. All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.egolessness.destino.mandatory.storage;

import org.egolessness.destino.mandatory.message.VbKey;
import org.egolessness.destino.mandatory.message.VsData;
import org.egolessness.destino.mandatory.message.WriteInfo;

import java.util.*;

/**
 * interface of storage delegate.
 *
 * @author zsmjwk@outlook.com (wangkang)
 */
public interface StorageDelegate {

    void refresh();

    Collection<VsData> loadAll();

    WriteInfo undertake(long from);

    Map<Long, List<VsData>> local(long from);

    void write(Collection<VsData> appendList, Collection<VbKey> removeList);

    void accept(Collection<VsData> appendList, Collection<VbKey> removeList);

}
